Is spotting normal during pregnancy?

I’m 19 weeks 1 day with my 3rd. A few days ago when I went to the bathroom and wiped there was a little blood. Not thick or anything. I remember that happening with my prior 2 so I didn’t think it was a huge deal. I’ve felt my little one moving everyday since but I just went to the bathroom and it happened again. Again very light and not much of it. I called my doctor and left a message to see if I need to come in but if yall could give me opinions until I hear back from her. Should I be worried?